Yo-yo



United States Patent Office 3,452,474 Patented July 1, 1969 3,452,474YO-YO Edward N. Zopf, East Wenatchee, Wash. 98801 Filed Oct. 10, 1966,Ser. No. 585,630 Int. Cl. A63h l/30, 1/24, 1/00 U.S. Cl. 46-228 3 ClaimsABSTRACT F THE DISCLOSURE This invention relates to toys. Morespecifically it relates to Yo-Yos and the like.

A principal object of the present invention is to provide a Yo-Yo whichis illuminated during a spinning operation.

Another object of the present invention is to provide an illuminatedYo-Yo having a self-contained power means for illuminating a pair ofelectric bulbs contained within the Yo-Yo and wherein the brilliance ofthe light from the bulbs is determined by the speed of the spinningYo-Yo.

Yet another object of the present invention is to provide an illuminatedYo-Yo which includes a plurality of spaced apart openings in the bodythereof and wherein the openings produce a variable pitch of whistlingsound which is determined by the changing speed of the spinning Yo-Yo.

Other objects of the present invention are to provide an illuminatedYo-Yo which is simple in design, inexpensive to manufacture, rugged inconstruction, easy to use and efficient in operation.

These and other objects will be readily evident upon a study of thefollowing speciiication and the accompanying drawing wherein:

FIGURE 1 is a perspective view of the present invention; shown inoperative use;

FIGURE 2 is a cross-sectional view taken on the line 2-2 of FIGURE l;

FIGURE 3 is a view similar to FIGURE 2 showing a modified constructionthereof.

Referring now to the drawing in detail the numeral represents a Yo-Yoaccording to the present construction wherein there is a body 11comprised of two hemispherical halves 12 each having a hemisphericalside 13 and a iiat side 14. Each half 12 is threadingly secured upon aspindle 15 having a chamber therewithin where a dry-cell battery notshown is contained. Each half of the body has a bearing opening 16 forreceiving a pin '17 therein for 'securing the body to a bail 18 andwhich supports a pair of contacts 19 in spaced apart relation into anopening 20 between the body halves 12, the contacts 19 being engageablewith contacts 21 secured upon the walls 14 of each half 12. Obviouslythe contact 19 may comprise a brush, each ybrush 19 being engageablewith one of the contacts 21.

Each contact is connected by means of a wire 22 to one end of thebattery and a lamp 23 in electrical series therewith whereby energy fromthe battery will be transmitted to the bulbs to light the Same.

A string 24 is wound upon the exposed portion of the spindle locatedbetween the body halves and within the space 20, the string 24 having aloop 25 at one end thereof which is engageable by a thumb 26 of apersons hand, as shown in FIGURE l of the drawing.

In operative use the Yo-Yo is wound up in a conventional rnanner andthen allowed to drop and unwind along the length of the string 24,during which time the Yo-Yo is spinning. During the spinning operationthe brushes 19 come into contact with the contacts 21. It is to be notedthat the contacts 21 are located diametrically opposite upon the Yo-Yowhereby the lamp within each body half will be lighted alternately aseach contact comes into engagement with one of the brushes 19.

As shown in FIGURE 1 of the drawing, an opening 26 may be provided inthe bail 18 and the string 24 extend through the opening 27 as shown.

In a modified form of the construction shown in FIG- URE 3 of thedrawing, each body half 12 includes diametrically opposite openings 28therein which will produce a whistling sound as the Yo-Yo spins. Due tothe variation of the speed during spinning, the whistling sound willhave a variable pitch.

I claim:

1. In a blinking Yo-Yo, the combination of a body, said body beingsecured to a spindle, a U-shaped bail around said body, a string woundupon said spindle for rotating said body during operative use, said bodyhaving self contained means for illumination therewithin, said `bodybeing comprised of two hollow hemispherical halves, each of said halveshaving a hemispherical side and a at side, said iiat sides beingthreadingly engaged upon each end of said spindle, said spindle beinghollow and being of a length less than the internal diameter of saidbody, said spindle enclosing a dry cell battery, said battery providinga means for producing electrical energy to a pair of lamp bulbs each ofwhich is mounted on the axial ends of said spindle, said lamp bulbsbeing accordingly contained within said body, each of said body halveshaving a contact point upon its at side, said contact points beingdiametrically apart, said contact points projecting into a space betweensaid body halves, said bail being pivotally connected within an openingof each of said body halves, said Ibail having a pair of brushes inspaced apart relation, said brushes depending into said space betweensaid body halves, said brushes being in alignment for contact with eachof said contacts on each of said body halves, and each of said contactsbeing connected by wire to said lamp bulbs and battery so to form acircuit for delivering power lfrom said battery to said lamp bulbs.

2. The combination as set forth in claim 1 wherein said body halves aremade from translucent plastic material having a fluorescent pigmenttherein or painted thereupon so that the lamp within each half producesa greater brilliance.

3. The combination as set forth in claim 2 wherein each of said bodyhalves has a pair of diametrically spaced apart openings therein forproducing a whistling sound.

References Cited UNITED STATES PATENTS 1,963,733 6/1934 Houston 46-612,795,898 6/ 1957 French 46-228 LOUIS G. MANCENE, Primary Examiner.

ROBERT F. CUTTING, Assistant Examiner.

U .S. Cl. X.R. 46-61, 63

